[sdiy] Reconstruction Filters

[Matthew Smith]

Quoth Tristan at 13/02/11 22:40...
> If you don't want to dynamically change the filter frequency after the note has started, only require 
> a small number of frequencies and/or a steep filter with a high number of poles, then then switching 
> resistors may be acceptable. But for something like a 4 pole LPF the VCF and DAC might actually 
> work out to be less complex and much more flexible.

I'm actually treating reconstruction filtering and any 'creative' 
filtering separately - the reconstruction filter being part of the DCO, 
module. Just to tidy-up the waveform before it goes to the VCF module 
for fancy stuff.

-- 
Matthew Smith

Blog: www.smiffysplace.com  Business: www.smiffytech.com
www.linkedin.com/in/smiffy  www.flickr.com/photos/msmiffy
twitter.com/smiffy